CN105842247A - Device and method for testing gunpowder burning smoke spatial distribution characteristics in airtight space - Google Patents
Device and method for testing gunpowder burning smoke spatial distribution characteristics in airtight space Download PDFInfo
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- CN105842247A CN105842247A CN201610164483.8A CN201610164483A CN105842247A CN 105842247 A CN105842247 A CN 105842247A CN 201610164483 A CN201610164483 A CN 201610164483A CN 105842247 A CN105842247 A CN 105842247A
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003721 gunpowder Substances 0.000 title claims abstract description 12
- 239000000779 smoke Substances 0.000 title abstract 5
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000037452 priming Effects 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 4
- 108091035707 Consensus sequence Proteins 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000011067 equilibration Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
- 208000031481 Pathologic Constriction Diseases 0.000 claims 1
- 235000011941 Tilia x europaea Nutrition 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 230000004313 glare Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 claims 1
- 239000004571 lime Substances 0.000 claims 1
- 239000005304 optical glass Substances 0.000 claims 1
- 210000001215 vagina Anatomy 0.000 claims 1
- 239000003380 propellant Substances 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 9
- 238000002834 transmittance Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
- G01N15/042—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates
- G01N2015/045—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates by optical analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8592—Grain or other flowing solid samples
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a device and method for testing gunpowder burning smoke spatial distribution characteristics in an airtight space; the device is composed of an airtight burning chamber, a face light source, an image sensor, a gas source and pressure intensity control device, an ignition power supply, and a data acquisition processing device. According to the testing method, videos of the face light source before, after and during gunpowder burning are collected by the image sensor, and optical transmittance spatial distribution in the airtight space, sedimentation rate, duration time and other parameters of smoke generated from gunpowder burning are obtained through image data processing and calculation, so as to characterize the spatial distribution characteristics of the smoke generated from gunpowder burning. The device and the method are suitable for testing the spatial distribution characteristics of the smoke generated from burning of propellants and propellant powders. The device has the advantages of simple structure, stable test results, small amount of required test samples and the like.
Description
Technical field
The present invention relates to a kind of powder burning smog space distribution characteristic device and method, it is adaptable to gunpowder is at confined space
The test of interior smog spatial characteristics.
Background technology
Clean propellant powder is an important directions of China's Propellant Techniques development.Weapons with pipes in the course of the work, propellant powder
Burning can produce substantial amounts of smog.On the one hand these smog can expose the position of armament systems, on the other hand, for video system
The secondary of guiding systems aims at and interferes.Stealthy and the guidance demand of weapons with pipes system requires that propellant powder is in formula design and work
Reduce the smog produced in combustion process during skill as far as possible.
Along with the development of advanced technology weapon, to low characteristic signal propellant, clean gas propellant, the demand of clean propellant powder
More and more, it is desirable to more and more concrete.In recent years, after shipborne weapon is launched, naval vessels internal aerosol cannot dissipate for a long time,
Work for staff and electric system causes greatly interference.New demand is for the cigarette of propellant powder (and propellant)
Mist performance indications require not only to be the restriction to transmitance, and also are intended to for powder burning at smog at closed environment
In persistent period, sedimentation velocity, the characteristic such as vertical space distribution characterize.And the most domestic not having is surveyed accordingly
Examination characterization method.
Summary of the invention
It is an object of the invention to provide gunpowder combustion fumes space distribution characteristic device and method in a kind of confined space,
It is applicable to the test of smog spatial characteristics in confined space of propellant and propellant powder.
Gunpowder combustion fumes space distribution characteristic device in the confined space provided in the present invention, mainly by airtight burning
Room, pressure-regulating device, priming supply, area source, optical image sensor, data acquisition and processing means composition；
Described airtight combustor possesses pressure regulation interface, ignition lead interface and sample carrier, and there is a pair observation combustor side
Window.
Described pressure-regulating device is made up of high-pressure nitrogen bottle, pressure limiting valve, switch valve and connecting line.
Described priming supply is made up of DC source, and output current adjustment saves, possesses resistance break-make detection function.
Described area source is made up of optics background board, secondary light source, and optics background board surface is greyish white striped.
Described imageing sensor is the infrared CCD sensor installing narrow band filter slice before camera lens additional, imageing sensor and area source
It is individually fixed in the both sides of airtight combustor observation window.
Described data acquisition and processing means are to install image acquisition and the industrial computer of data processing software, lead to imageing sensor
Cross data wire to be connected.
The key step of method of testing:
The first step: test device is connected energising preheating；Load weighted test sample is placed in the sample carrier of airtight combustor
On, with pressure-regulating device, airtight combustor initial pressure is adjusted, brightness and the ginseng of imageing sensor to area source
Number is adjusted, junction point ignition source.
Second step: the image acquisition region of imageing sensor is set to the fringe area of area source, with data acquisition and process
Device controls imageing sensor and starts to gather image, lights a fire test sample with priming supply, treat that area source becomes after 10 seconds
After stable, stop image acquisition, the video file collected is stored in data acquisition and processing means.
3rd step: the video file gathering test is converted into grayscale image sequence；Process image frame by frame, by test sample point
Image sequence before fire as consensus sequence, synthesis benchmark image that the gray scale of benchmark image sequence is averaged.
4th step: the gray scale of each two field picture pixel in sequence of computed images and the ratio of the gray value of benchmark image；Calculate
Result as the smog between this moment area source and optical pickocff in the spatial distribution to optical signalling transmitance
τi(x, y).
5th step: by smog in spatial distribution τ of the transmitance to optical signallingi(x, y) averages in the horizontal direction, can
ObtainI.e. smog concentration distribution in vertical direction.
6th step: willCarry out calculus of differences in time, the sedimentation speed of smokescope on different vertical height y can be obtained
Degree
7th step: solveObtain the equilibration time of smog in vertical height y.
It is an advantage of the current invention that: this apparatus structure is simple, and required sample size is few, greatly reduces testing cost；Test
Scope is big, substantially covers the space in whole airtight combustor.
Accompanying drawing explanation
Gunpowder combustion fumes space distribution characteristic device schematic diagram in Fig. 1 confined space, the airtight combustor of 1-, 2-source of the gas
And pressure control device, 3-priming supply, 4-area source, 5-imageing sensor, 6-data acquisition and processing means.
Fig. 2 airtight chamber structure schematic diagram, 1-1 burning chamber shell, 1-2 pressure regulation interface, 1-3 observation window, 1-4
Bearing support, 1-5 sample carrier, 1-6 ignition lead.
Detailed description of the invention
Below by embodiment, the present invention is further explained explanation.
Test site is arranged: according to Fig. 1, connecting test device, and instrument connects power supply, preheats half an hour.
Testing procedure:
1) load weighted test sample is placed on the sample carrier 1-5 of airtight combustor 1, is then placed into airtight burning
In room；Junction point ignition source；With pressure-regulating device, airtight combustor initial pressure is adjusted；Opposite light
The brightness in source and the parameter of imageing sensor are adjusted；
2) image acquisition region of imageing sensor 5 is set to the fringe area of area source, with data acquisition and process dress
Put 6 control imageing sensors to start to gather image, with priming supply, test sample is lighted a fire after 10 seconds, treat
Stop image acquisition after area source image stabilization, the video collected is stored in data acquisition and processing means.
Data process processing procedure:
1) video file gathering test is converted into grayscale image sequence；Process image frame by frame, before test sample being lighted a fire
Image sequence as consensus sequence, synthesis benchmark image that the gray scale of benchmark image sequence is averaged.
2) ratio of the gray value of the gray scale of each two field picture pixel in sequence of computed images and benchmark image；Result of calculation
As the smog between this moment area source and optical pickocff in the spatial distribution to optical signalling transmitance
τi(x,.
3) by smog in spatial distribution τ of the transmitance to optical signallingi(x, averages in the horizontal direction, can obtainI.e. smog concentration distribution in vertical direction.
4) willCarry out calculus of differences in time, the sedimentation velocity of smokescope on different vertical height y can be obtained
5) solveObtain the equilibration time of smog in vertical height y.
The present invention is not limited to above-mentioned embodiment, uses or the structure of approximation identical with the above embodiment of the present invention, and obtains
Other structures design, all within protection scope of the present invention.
Claims (6)
1. gunpowder combustion fumes space distribution characteristic device in a confined space, it is characterised in that by airtight combustor (1),
Pressure-regulating device (2), priming supply (3), area source (4), optical image sensor (5), data acquisition and process
Device (6) forms；Described airtight combustor (1) possesses pressure regulation interface, ignition lead interface and sample carrier, burning
There is a pair observation window side, room；Described pressure-regulating device (2) is by high-pressure nitrogen bottle, pressure limiting valve, switch valve and connecting tube
Road forms；Described priming supply (3) is made up of DC source, exports current adjustment, possesses resistance break-make detection function；
Described area source (4) is made up of optics background board, secondary light source, and optics background board surface is greyish white striped, and inside has auxiliary
Help light source；Described imageing sensor (5) is the infrared CCD sensor installing narrow band filter slice before camera lens additional, image sensing
Device (5) and area source (4) are individually fixed in airtight combustor observation window both sides；Described data acquisition and processing means (6)
For installing image acquisition and the industrial computer of data processing software, it is connected by data wire with imageing sensor (5).
Test device the most according to claim 1, it is characterised in that the case material of described airtight combustor (1) is
1Cr18Bi9Ti；The material of observation window is optical glass, and infrared and visible waveband transmitance is more than 80%.
3. according to the test device described in claims 1, it is characterised in that the narrow band filter slice of described imageing sensor (3),
Logical optical frequencies is 0.3～0.7 μm, or 1～3 mu m wavebands.
4. gunpowder combustion fumes space distribution characteristic method in a confined space, it is characterised in that step is as follows:
The first step: test device is connected energising preheating；Load weighted test sample is placed in the sample of airtight combustor (1)
On product carrier, with pressure-regulating device (2), airtight combustor initial pressure is adjusted, the brightness to area source (4)
And the parameter of imageing sensor (5) is adjusted, junction point ignition source；
Second step: the image acquisition region of imageing sensor (5) is set to the fringe area of area source, uses data acquisition
And processing means (6) controls imageing sensor (5) and starts to gather image, with priming supply (3) to test specimens after 10 seconds
Product are lighted a fire, after area source image stabilization stop image acquisition, the video file collected is stored data acquisition and
In processing means (6)；
3rd step: the video file gathering test is converted into grayscale image sequence；Process image frame by frame, by test sample point
Image sequence before fire as consensus sequence, synthesis benchmark image that the gray scale of benchmark image sequence is averaged；
4th step: the gray scale of each two field picture pixel in sequence of computed images and the ratio of the gray value of benchmark image；Calculate
The space of optical signalling transmitance is being divided by result as the smog between this moment area source (2) and optical pickocff (3)
Cloth τi(x, y)；
5th step: by smog in spatial distribution τ of the transmitance to optical signallingi(x, y) averages in the horizontal direction, can
ObtainI.e. smog concentration distribution in vertical direction；
6th step: willCarry out calculus of differences in time, the sedimentation speed of smokescope on different vertical height y can be obtained
Degree
7th step: solveObtain the equilibration time of smog in vertical height y.
5. brightness and the figure according to the method for testing described in claims 4, it is characterised in that in the first step, to area source (4)
After being adjusted as the parameter of sensor (5), area source imaging mellow lime fringe area average gray and informal voucher stricture of vagina zone leveling
The ratio of gray scale is in interval [0.5,0.8].
6., according to the method for testing described in claims 4, it is characterised in that in the 4th step, try to achieve smog to optical signalling
Spatial distribution τ of transmitancei(x, y) after, by the related operation of greyish white fringe area transmitance, eliminate the impact of veiling glare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164483.8A CN105842247B (en) | 2016-03-22 | 2016-03-22 | Gunpowder combustion fumes space distribution characteristic device and method in a kind of confined space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164483.8A CN105842247B (en) | 2016-03-22 | 2016-03-22 | Gunpowder combustion fumes space distribution characteristic device and method in a kind of confined space |
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| Publication Number | Publication Date |
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| CN105842247A true CN105842247A (en) | 2016-08-10 |
| CN105842247B CN105842247B (en) | 2018-10-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110458825A (en) * | 2019-08-08 | 2019-11-15 | 西安近代化学研究所 | A kind of flow field smog transmitance distribution tester and data processing method |
| CN110726700A (en) * | 2019-11-06 | 2020-01-24 | 北京环境特性研究所 | Smoke transmittance distribution measurement and acquisition method and device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165868B (en) * | 2014-08-25 | 2016-09-14 | 西安近代化学研究所 | Solid propellant smoke optical transmittance measuring method |
| CN104807784B (en) * | 2015-05-14 | 2017-09-08 | 西安近代化学研究所 | Propellant smog screening capacity field testing device and method |
| CN104849241B (en) * | 2015-05-14 | 2017-12-22 | 西安近代化学研究所 | The calibration method of propellant smog light screening capacity test system |
| CN104809711B (en) * | 2015-05-14 | 2017-07-04 | 西安近代化学研究所 | Solid propellant plume smog method of video image processing |
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2016
- 2016-03-22 CN CN201610164483.8A patent/CN105842247B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110458825A (en) * | 2019-08-08 | 2019-11-15 | 西安近代化学研究所 | A kind of flow field smog transmitance distribution tester and data processing method |
| CN110458825B (en) * | 2019-08-08 | 2022-05-24 | 西安近代化学研究所 | Flow field smoke transmittance distribution testing device and data processing method |
| CN110726700A (en) * | 2019-11-06 | 2020-01-24 | 北京环境特性研究所 | Smoke transmittance distribution measurement and acquisition method and device |
| CN110726700B (en) * | 2019-11-06 | 2022-03-25 | 北京环境特性研究所 | Smoke transmittance distribution measurement and acquisition method and device |
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| CN105842247B (en) | 2018-10-12 |
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